dabc::memstream Class Reference

iostream class, which write and read data from memory More...

#include <dabc/Record.h>

Inheritance diagram for dabc::memstream:

Public Member Functions
virtual uint64_t	maxstoresize () const
	return maximum size of data which can be stored in the stream More...
	memstream (bool isinp, char *buf, uint64_t len)
virtual bool	read (void *tgt, uint64_t len)
virtual bool	shift (uint64_t len)
virtual uint64_t	size () const
	return number of bytes, written or read from the stream More...
virtual bool	write (const void *src, uint64_t len)
virtual	~memstream ()
Public Member Functions inherited from dabc::iostream
bool	is_input () const
bool	is_output () const
virtual bool	is_real () const
bool	read_double (double &v)
bool	read_int32 (int32_t &v)
bool	read_int64 (int64_t &v)
bool	read_str (std::string &str)
	Restore string from the stream. More...
bool	read_uint32 (uint32_t &v)
bool	read_uint64 (uint64_t &v)
bool	skip_object ()
	Insted of reading object we read size and shift on that size Only can be done where size stored as 32-bit integer in the current position and contains number of 64-bit stored values, including size itself. More...
bool	verify_size (uint64_t pos, uint64_t sz)
bool	write_double (double v)
bool	write_int32 (int32_t v)
bool	write_int64 (int64_t v)
bool	write_str (const std::string &str)
	Store string in the stream. More...
bool	write_uint32 (uint32_t v)
bool	write_uint64 (uint64_t v)
virtual	~iostream ()

Protected Member Functions
virtual char *	tmpbuf () const
	return temporary buffer More...
virtual uint64_t	tmpbuf_size () const
	return number of bytes which are directly available in temporary buffer More...
Protected Member Functions inherited from dabc::iostream
	iostream ()
	iostream (bool isinp)

Protected Attributes
char *	fCurr
uint64_t	fLength
char *	fMem
uint64_t	fRemains
Protected Attributes inherited from dabc::iostream
bool	fInput

Additional Inherited Members
Static Public Member Functions inherited from dabc::iostream
static uint64_t	str_storesize (const std::string &str)
	Returns bytes count, required to store string. More...

Detailed Description

iostream class, which write and read data from memory

Definition at line 133 of file Record.h.

Constructor & Destructor Documentation

memstream()

dabc::memstream::memstream ( bool  isinp, char *  buf, uint64_t  len  )

inline

Definition at line 152 of file Record.h.

~memstream()

virtual dabc::memstream::~memstream ( )

inlinevirtual

Definition at line 161 of file Record.h.

Member Function Documentation

tmpbuf_size()

virtual uint64_t dabc::memstream::tmpbuf_size ( ) const

inlineprotectedvirtual

return number of bytes which are directly available in temporary buffer

Reimplemented from dabc::iostream.

Definition at line 140 of file Record.h.

tmpbuf()

virtual char* dabc::memstream::tmpbuf ( ) const

inlineprotectedvirtual

return temporary buffer

Reimplemented from dabc::iostream.

Definition at line 141 of file Record.h.

size()

virtual uint64_t dabc::memstream::size ( ) const

inlinevirtual

return number of bytes, written or read from the stream

Reimplemented from dabc::iostream.

Definition at line 145 of file Record.h.

maxstoresize()

virtual uint64_t dabc::memstream::maxstoresize ( ) const

inlinevirtual

return maximum size of data which can be stored in the stream

Reimplemented from dabc::iostream.

Definition at line 146 of file Record.h.

shift()

bool dabc::memstream::shift ( uint64_t  len )

virtual

Reimplemented from dabc::iostream.

Definition at line 114 of file Record.cxx.

write()

bool dabc::memstream::write ( const void *  src, uint64_t  len  )

virtual

Reimplemented from dabc::iostream.

Definition at line 122 of file Record.cxx.

read()

bool dabc::memstream::read ( void *  tgt, uint64_t  len  )

virtual

Reimplemented from dabc::iostream.

Definition at line 132 of file Record.cxx.

Field Documentation

fMem

char* dabc::memstream::fMem

protected

Definition at line 135 of file Record.h.

fLength

uint64_t dabc::memstream::fLength

protected

Definition at line 136 of file Record.h.

fCurr

char* dabc::memstream::fCurr

protected

Definition at line 137 of file Record.h.

fRemains

uint64_t dabc::memstream::fRemains

protected

Definition at line 138 of file Record.h.

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The documentation for this class was generated from the following files:

• base/dabc/Record.h
• base/src/Record.cxx